diff --git a/alfresco-transformer-base/src/test/java/org/alfresco/transformer/AbstractTransformerControllerTest.java b/alfresco-transformer-base/src/test/java/org/alfresco/transformer/AbstractTransformerControllerTest.java
index 47eb8c6e..f561b8ef 100644
--- a/alfresco-transformer-base/src/test/java/org/alfresco/transformer/AbstractTransformerControllerTest.java
+++ b/alfresco-transformer-base/src/test/java/org/alfresco/transformer/AbstractTransformerControllerTest.java
@@ -35,7 +35,6 @@ import static org.springframework.http.HttpHeaders.CONTENT_TYPE;
 import static org.springframework.http.HttpStatus.BAD_REQUEST;
 import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
 import static org.springframework.http.HttpStatus.OK;
-import static org.springframework.http.MediaType.APPLICATION_JSON_UTF8_VALUE;
 import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header;
@@ -352,7 +351,7 @@ public abstract class AbstractTransformerControllerTest
         String response = mockMvc
             .perform(MockMvcRequestBuilders.get("/transform/config"))
             .andExpect(status().is(OK.value()))
-            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_UTF8_VALUE))
+            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_VALUE))
             .andReturn().getResponse().getContentAsString();
 
         TransformConfig transformConfig = objectMapper.readValue(response, TransformConfig.class);
@@ -371,7 +370,7 @@ public abstract class AbstractTransformerControllerTest
         String response = mockMvc
             .perform(MockMvcRequestBuilders.get("/transform/config"))
             .andExpect(status().is(OK.value()))
-            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_UTF8_VALUE))
+            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_VALUE))
             .andReturn().getResponse().getContentAsString();
 
         TransformConfig transformConfig = objectMapper.readValue(response, TransformConfig.class);
@@ -398,7 +397,7 @@ public abstract class AbstractTransformerControllerTest
         String response = mockMvc
             .perform(MockMvcRequestBuilders.get("/transform/config"))
             .andExpect(status().is(OK.value()))
-            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_UTF8_VALUE))
+            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_VALUE))
             .andReturn().getResponse().getContentAsString();
 
         TransformConfig transformConfig = objectMapper.readValue(response, TransformConfig.class);
@@ -421,7 +420,7 @@ public abstract class AbstractTransformerControllerTest
         String response = mockMvc
             .perform(MockMvcRequestBuilders.get("/transform/config"))
             .andExpect(status().is(OK.value()))
-            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_UTF8_VALUE))
+            .andExpect(header().string(CONTENT_TYPE, APPLICATION_JSON_VALUE))
             .andReturn().getResponse().getContentAsString();
 
         TransformConfig transformConfig = objectMapper.readValue(response, TransformConfig.class);
diff --git a/pom.xml b/pom.xml
index d6bbeef5..34aca612 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.1.8.RELEASE</version>
+        <version>2.2.1.RELEASE</version>
         <relativePath />
     </parent>